教学的科学性是指教学内容要正确地反映客观世界及其运动规律,教给学生科学知识。( )
参考答案:对
EB是()。
A.聚丙烯酰胺
B.考马斯亮蓝
C.溴酚蓝
D.甲基蓝
E.溴化乙啶
设已经在“菜单编辑器”中设计了窗体的快捷菜单,其顶级菜单为Bs,取消其“可见”属性,运行时,在以下事件过程中,可以使快捷菜单响应鼠标右键的是( )
A.Private Sub Form_MouseDown(Button As Integer,Shift As Integer,X As Single,Y As Single) If Button=2 Then PopupMenu Bs,2End SubB.Private Sub Form_MouseDown(Button As Integer,Shift As Integer,X As Single,Y As Single) PopupMenu BsEnd SubC.Private Sub Form—MouseDown(Button As Integer,Shift As Integer,X As Single,Y As Single) PopupMenu Bs,0End SubD.Private Sub Form_MouseDown(Button As Integer,Shift As Integer,X As Single,Y As Single) If(Button=vbLeftButton)0r(Button=vbRightButton)Then PopupMenu BsEnd Sub